CVE-2026-101205

Received Received - Intake

Out-of-Bounds Read in FastStone Image Viewer

Publication date: 2026-09-28

Last updated on: 2026-09-28

Assigner: VulDB

Description

A vulnerability was determined in FastStone Image Viewer up to 8.3. This impacts an unknown function of the component PCX Decoder. This manipulation causes out-of-bounds read. The attack may be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-28

Last Modified

2026-09-28

Generated

2026-09-29

AI Q&A

2026-09-29

EPSS Evaluated

N/A

NVD

CVE-2026-101205

Affected Vendors & Products

Vendor	Product	Version / Range
faststone	faststone_image_viewer	to 8.3 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.
CWE-119	The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read issue in FastStone Image Viewer up to version 8.3, specifically in the PCX Decoder component. It allows remote attackers to manipulate the application and read memory outside the intended bounds.

Detection Guidance

Detection of this vulnerability requires checking for the presence of FastStone Image Viewer versions up to 8.3, as the issue is tied to the PCX Decoder component. No specific commands are provided in the context for detection.

Impact Analysis

An attacker could exploit this to read sensitive data from memory, potentially leading to information disclosure. It may also cause crashes or unexpected behavior in the application.

Compliance Impact

This vulnerability could lead to unauthorized data access, which may violate GDPR (data protection) or HIPAA (health data privacy) if sensitive information is exposed. Organizations should patch to avoid compliance risks.

Mitigation Strategies

Update FastStone Image Viewer to the latest version beyond 8.3 to address the out-of-bounds read vulnerability in the PCX Decoder component.

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